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Spyridon Antoniou, Stavros Kapsalis, Pericles Panagiotou and Kyros Yakinthos
The current study investigated the effect of leading-edge slats on the longitudinal stability at high angles of attack of a Blended-Wing-Body (BWB) Unmanned Air Vehicle (UAV). Using a Design of Experiments (DOE) approach and, specifically, the Taguchi me...
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Stavros Kapsalis, Chris Bliamis, Pavlos Kaparos, Pericles Panagiotou and Kyros Yakinthos
The current work investigates the effect of canard geometric characteristics on the performance of a lightweight flying wing Unmanned Aerial Vehicle (UAV), capable of both conventional and Vertical Take-Off and Landing (VTOL) flight. The canards are size...
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Sungsik Wang, Hyunsoo Kim, Dongyoon Kim and Hosung Choo
This paper proposes a multi-band array antenna that shares a common aperture with heterogenous array elements. The multi-band array antenna includes one printed dipole antenna for the S-band and 3 × 3 array E-shaped patch antennas for the X-band. The cur...
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Chao-Wei Tang, Chiu-Kuei Cheng and Lee-Woen Ean
The main purpose of this study was to investigate the mix design and performance of fiber-reinforced pervious concrete using lightweight coarse aggregates instead of ordinary coarse aggregates. There were two main stages in the relevant testing work. Fir...
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Duo Teng, Yatian Li, Hu Yang, Zhiqiang Wei and Yaan Li
Underwater acoustic imaging employs a special form of array which includes numerous transducer elements to achieve beamforming. Although a large-scale array can bring high imaging resolution, it will also cause difficulties in hardware complexity and rea...
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Mario García de Blas, Morten Andreas Geday, Jose Manuel Otón and Xabier Quintana Arregui
Electrically tunable phase gratings are able to steer an incoming light beam without employing movable parts. Here, we present the design and implementation of a 2D beam steering device by cascading two orthogonal 1D liquid crystal (LC) based phase grati...
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Pham Ba Thao, Duong Cong Truyen and Nguyen Minh Phu
In this paper, a solar air collector duct equipped with baffles on a back plate was numerically investigated. The Reynolds number (Re) was varied from 5000 to 20,000, the angle baffle (a) from 30° to 120°, the baffle spacing ratio (Pr) from 2 to 8, and t...
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Alex Mezheritsky
A novel effective vibrational mode was discovered in the conventional transducer with an array of orthogonal (square) regular piezoelectric rods in 1-3 piezocomposite, containing the damping backing and front matching layers. The operational resonance in...
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Yalina Ma, Qian Sheng, Guimin Zhang and Zhen Cui
For water transmission tunnels constructed in high-risk seismic regions of western China, active faults pose threats of serious ruptures to the tunnels. To overcome this issue, a 3D discrete-continuum coupling approach is introduced into the study. By th...
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Ngoc-Pi Vu, Quoc-Tuan Nguyen, Thi-Hong Tran, Hong-Ky Le, Anh-Tuan Nguyen, Anh-Tung Luu, Van-Tung Nguyen and Xuan-Hung Le
Cutting regime parameters play an important role in determining the efficiency of the grinding process and the quality of the ground parts. In this study, the influences of the cutting parameters, including the cutting depth (ae), the feed rate (Fe) and ...
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